School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India.
Published: December 2019
AI Article Synopsis
Article Abstract
Phenol and its derivatives are extremely useful compounds in organic synthesis, medicinal chemistry and material sciences. The synthesis of phenols involving selective construction of the C-O bond at a C-H bond of arenes using transition-metal catalysis represents the most appealing strategy. Indeed, active research is currently going on for the synthesis of valuable phenolic compounds using a transition-metal-catalyzed C-H functionalization strategy. This short review summarizes recent advances on palladium-catalyzed C-O bond forming reactions that enable direct access to phenolic compounds. These catalytic reactions proceed either via C-H esterification with trifluoroacetic acid/trifluoroacetic anhydride followed by in situ hydrolysis of the ester or via direct C-H hydroxylation. A brief analysis of substrate scope and limitation, reaction mechanism as well as synthetic utility of these reactions has been included.
Department of Food Engineering, School of Mechanical and Chemical Engineering, Wollo University, Kombolcha Institute of Technology, Kombolcha, Ethiopia.
This study investigates that the phenolic compound extracted from the potato peels using ethanol by maceration as a natural preservation agent for cow butter, yielding 10.42 ± 0.03 % phenolic compound.
The use of alternative ingredients as supplements to or blends with kombucha tea to improve organoleptic properties and health effects has recently increased. Indian gooseberry fruit is among the most promising alternative raw materials for producing functional kombucha since the berries contain several beneficial substances. In this study, the production of functional kombucha beverages from fusions of black tea and Indian gooseberry fruit homogenate (IGH) was investigated, and the chemical and biological properties of kombucha products were evaluated and compared with those of traditional black tea kombucha products.
The genus (Rhamnaceae) comprises at least 50 recognized species distributed across tropical and subtropical regions. species have been ethnomedicinally used to treat a variety of ailments. Despite their widespread medicinal use, there is no comprehensive documentation that consolidates the ethnobotanical knowledge, phytochemicals, pharmacological properties, and toxicity of species.
Organic pollutants removal via a polymerization transfer (PT) pathway based on the use of single-atom catalysts (SACs) promises efficient water purification with minimal energy/chemical inputs. However, the precise engineering of such catalytic systems toward PT decontamination is still challenging, and the conventional SACs are plagued by low structural stability of carbon material support. Here, we adopted magnesium oxide (MgO) as a structurally stable alternative for loading single copper (Cu) atoms to drive peroxymonosulfate-based Fenton-like reactions.
Institute for Agro-food Standards and Testing Technology, Laboratory of Quality and Safety Risk Assessment for Agro-products (Shanghai), Ministry of Agriculture, Shanghai Academy of Agricultural Sciences, 1000 Jingqi Road, Shanghai 201403, China. Electronic address:
This study aimed to analyze the effects of temperature on physicochemical properties and volatile profiles of the 'Shine Muscat' grape during postharvest storage. Fresh grapes were stored at 4 °C and 25 °C for 28 d. The salable weight and appearance-related quality were better maintained in low-temperature storage (4 °C), and grapes stored at 25 °C presented a higher total soluble solids/titratable acidity ratio (TSS/TA), total phenols, total flavonoids, and total anthocyanins during storage compared to 4 °C.
